mirror of
https://github.com/openvswitch/ovs
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4e022ec09e
Until now, datapath ports and openflow ports were both represented by unsigned integers of various sizes. With implicit conversions, etc., it is easy to mix them up and use one where the other is expected. This commit creates two typedefs, ofp_port_t and odp_port_t. Both of these two types are marked by "__attribute__((bitwise))" so that sparse can be used to detect any misuse. Signed-off-by: Alex Wang <alexw@nicira.com> Signed-off-by: Ben Pfaff <blp@nicira.com>
61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/*
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* Copyright (c) 2010, 2011 Nicira, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef DPIF_LINUX_H
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#define DPIF_LINUX_H 1
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <linux/openvswitch.h>
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#include "flow.h"
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struct ofpbuf;
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struct dpif_linux_vport {
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/* Generic Netlink header. */
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uint8_t cmd;
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/* ovs_vport header. */
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int dp_ifindex;
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odp_port_t port_no; /* ODPP_NONE if unknown. */
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enum ovs_vport_type type;
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/* Attributes.
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*
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* The 'stats' member points to 64-bit data that might only be aligned on
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* 32-bit boundaries, so use get_unaligned_u64() to access its values.
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*/
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const char *name; /* OVS_VPORT_ATTR_NAME. */
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const uint32_t *upcall_pid; /* OVS_VPORT_ATTR_UPCALL_PID. */
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const struct ovs_vport_stats *stats; /* OVS_VPORT_ATTR_STATS. */
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const struct nlattr *options; /* OVS_VPORT_ATTR_OPTIONS. */
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size_t options_len;
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};
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void dpif_linux_vport_init(struct dpif_linux_vport *);
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int dpif_linux_vport_transact(const struct dpif_linux_vport *request,
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struct dpif_linux_vport *reply,
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struct ofpbuf **bufp);
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int dpif_linux_vport_get(const char *name, struct dpif_linux_vport *reply,
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struct ofpbuf **bufp);
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bool dpif_linux_is_internal_device(const char *name);
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#endif /* dpif-linux.h */
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